private EmulatedThread Next(EmulatedThread currentThread, List<EmulatedThread> list)
{
for (int i = 0; i < list.Count; i++)
{
if (list[i] == currentThread)
{
int nexti;
if (i == list.Count - 1)
{
nexti = 0;
}
else
nexti = i + 1;
return list[nexti];
}
}
return list[0];
}
private void timer_Elapsed(object source, ElapsedEventArgs e)
{
//add the new threads to queue with starttime = time
IEnumerable<EmulatedThread> Threads = list.FindAll(thread => thread.StartTime == Time);
foreach (EmulatedThread t in Threads)
{
external_list.Add(t);
}
if (external_list.Count == 0)
{
Timer timer = (Timer)source;
timer.Stop();
return;
}
current = Next(current, external_list);
if (current.CpuBurst > 0 && current.Thread.ThreadState == System.Threading.ThreadState.Unstarted)
{
current.Thread.Start();
current.CpuBurst--;
Console.WriteLine("Running thread #" + current.ThreadId);
}
else if (current.CpuBurst > 0 && current.Thread.ThreadState == System.Threading.ThreadState.Running)
{
current.CpuBurst--;
Console.WriteLine("Running thread #" + current.ThreadId);
}
else
{
try
{
current.Thread.Abort();
}
finally
{
//Thread was closed succefully
Console.WriteLine("Destroying thread #" + current.ThreadId);
}
external_list.Remove(current);
}
Time++;
}
private static void stepThread(EmulatedThread current)
{
current.CpuBurst--;
Console.WriteLine("Running thread #" + current.ThreadId);
}
private void selectThread()
{
List<EmulatedThread> av = sorted.FindAll((a) => { return a.StartTime <= currentTime; });
EmulatedThread min = av[0];
foreach (EmulatedThread i in av)
{
if (min.CpuBurst > i.CpuBurst)
min = i;
}
currentThread = min;
}
